Braider carrier



Dec. 2, 1924. 1,517,840

E. KOELLA BRAIDER CARRIER original Filed im. 1, 1922 2 sheets-sheet 1 Dec. 2, 1924, 1,517,840

E. KoELLA BRAIDER CARRIER original Filed Aug. 1, 1922 2 sheets-sheet' 2 Illlllll HIIII lllll gwen/6oz a@ @ZM Patented Dec. 2, 1924.

PATENT OFFICE.

ERNEST KOELLA, OF ROCKFORD, TENNESSEE.

BRAIDER CARRIER.

Application filed August 1, 1922, Serial No. 578,880. Renewed October 3, 1924.

To all whom t may concern.'

Be it known that I, ERNEST Komm, a citi Zen .of the United States, residing at Roeliford, in the county ol' Blount and State o'l Tennessee, have invented a new and useful Improvement in Braider Carriers, ol which the following is a speeication, reference being had to the accompanying drawing.l

My improvement relates particularly to means for controlling the rotation of spools in braider carriers.

The object of the invention is to provide mechanism whereby the spool is made to o filer substantially uniform resistance to the unwinding of the cord throughout the unwinding, whether the quantity of cord on the spool is large or small.

In the accompanying drawings, y

Fig. 1 is a perspective of a carrier embodying my improvement;

Fig. 2 is an elevation looking at the carrier from the left as shown in Fig. 1;

Fig. 3 is a transverse section of. the structure shown by Figs. land 2;

Fig. l is an upright section on the line, lf-Jl, of Fig. 3;

Fig. 5 is a horizontal 5 5, of Fig. 3;

Figs. 6 and 7 show modifications, wherein the resistance disc :is separable from the spool.

Referring first to Figs. l to 5, inclusive, .A .is a base 'from which rises the stationary uln'ight spool axle, ll, lwhich is loosely snrrounded by the spool, C, having a plain np- 'per disc, C", and a lower disc, C2, which serves as a resistance disc. Sa id disc is prei'- erably notched, as shown by the drawings, to term a ratchet let-off. From the base, A, there rises a cord guiding column, D, which stands parallel to the axle, B. Near said column is a wire cord guide, D1, having its lower end rigidly secured to the base, A, and having its upper end turned laterally and secured rigidly to the column, D. Near its middle, the column, Dhas an aperture, D2, which forms a guide. for the cord, I. At its upper end, said column has an upright passage or eye, D3, for guiding the cord, I. n i

The cord passes from the spool across .the guide, D1, andthrough the aperture, D2,

section on the line,

' clockwise. .turned upward and extends over the outer and thence upward through the upper aperture or eye, D3, as shown by the drawings.

ln addition to serving the function. of guiding, the bar or guide, D1, and the apertures, D2 and D3, olier frictional resistance -t-he column, D, and the spool axle, l5. The

presser blade presses yieldingly upon the mass ot cord on the spool. The presser roller presses yieldingly against the periphery of the lower disc or ratchet let-oii, C2. To increase the resistance offered by the roller and to make such resistance variable or spasmodic, the periphery of the lower disc, C2, is preferably provided with notches, C3, whereby said disc isl made a ratchet let-ofi'.

The presser roller is carried on a support F1, which loosely surrounds a sleeve, El, which loosely surrounds a post, G, which rises from and is rigid on the base, A. Said post has a base, G1, resting on the base, A. On the lower part ot the sleeve, El, is a hub, E?, which forms a rest for the presser roller support, F1. Said hub rests on the base, A- At the lower part oit the hub is a flange, E3, in which is a sockel, Fi", at the side of said plane opposite the presser roller. A spring, lll, is coiled :nouml the hub, blz, so as to inalre the ends ol the spring tend to move toward the space between the post, (l, and the spool. One end of the spring rests in the socket, E4, and tends to turn the hub The other end of the spring is face of the roller support, F1, between the sleeve, E1, and the roller, F, and tends to turn the roller support, F1, contracloclrwise, whereby the roller, F is pressed against the dise or ratchet let-oil, C2.

Above the roller support, F1, the sleeve, El, supports the presser blade, E, one end ot said blade surrounding said sleeve while the other end of the blade is in position to bear against the mass of cord on the lower part of the spool. rihe blade is folded around the sleeve, El, and two binding screws, E5, extend through the end and the body oi: the blade beside the sleeve and serve to bind the folded part ot the blade immovably to the sleeve.

On the upper end of the post, G, is a washer, G2, large enough to extend across the sleeve, E1. A screw, G3, Iextends downward through said washer into the post, G, to hold the washer in place.

From 'thel foregoing it will be seen that the resistance offered to the passing of the edge ot the disc or ratchet let-ott', C2, over the presser roller, F, depends upon the distance at which the tree end or' the presser blade is held vtrom the spool axle, l. The farther the presser blade is held from said axle, the harder the presser roller will bear against the resistance disc, and the more resistance the presser roller will otter to the turning or' the disc, C2; 'for then the spring, il, is under greater tension.

In connection with the foregoing it must be noted that as the unwinding ot the cord proceeds, the point at which the cord pulls on the spool moves closer and closer to the spool axis. From that point to the axis is a diminishing arm of a lever, the other arm of which extends from said axis to the edge of the disc. The diminishing of said arm reduces the effectiveness of the strain on the cord for turning the spool. This diminution in effectiveness or said cord strain must be taken into account while making provision tor diminishing the pressure of the roller on the edge of the ratchet let-olli.

To allow the unwinding of the cord, I, from the spool by movement of the cord through the aperture, D1, and the eye, D3, at uniform speed, the rotation of the spool, including the ratchet let-oil, C2, must be allowed to increase as the mass of cord on the spool is made ol smaller diameter. Hence it is desirable that the aggregate resistance to the turning ot the spool be diminished simultaneously with and proportional to the redl'lction ot diameter of the cord mass on the spool, in order that the torce needed to pull the cord through the eye, D", may be substantially uniform during the operation ot the braiding machine. The roller support and the presser blade are made of such relative dimensions as to allow the changing of the presser roller pressure toward the resistance disc at such rate as will re quire the same pull on the cord during the unwinding of all of the cord from the spool.

Furthermore, in providing for changing the presser roller pressure toward the ratchet let-olf, the tact must be taken into account that the resistance afforded by the roller, under a given pressure, to the turning ot the ratchet let-ofi' depends in part upon the velocity or' rotation of the let-off, the engagement between the let-ofi. and 'the roller being increased by increase in relocity or the let-ori'. For when the velocity et the let-off increases, the impact between the teeth of the let-olf and the roller increases in force. impact varies with the size and inclination of said teeth.

ln Figs. 6 and '7, two discs, J and K, are applied to the lower end ot' the spool, the disc, J, being in plain form like the upper disc, C1, and the disc` K, being below the disc, J, and detachably engaged with the disc, J, and having notches similar to the notches on the disc, E2, ot Figs. l, and Il. The disc, K, loosely surrounds the spool axle, B. (')n the disc, K, are studs, K. which risc loosely into sockets, J1, ,formed in the disc, J. Thus engagement is made bcp tween these two discs which compels the rotation of these discs in unison. turning ot the spool by pulling on the cord for unwinding causes the rotation ot both these discs. The presser roller, l", in this case bears against the notched resistance disc, K. Then all the cord has been unwound from the spool, that spool is to be lifted out ot position on the spool axle, the disc, K, being detached and then put into engagement with the next spool placed on the spool axle.

I claim as my invention,

l. In a mechanism of the kind described, the combination with a base, of spoel meehanism including a ratchet let-olf, means l'or guiding cord from the spool, presser meehanism having one part located to bear against the mass of cord on the spool and having another part located to bear against the ratchet let-olf, and elastic means tending to press the first part of said presser 1nechanism against the cord mass on the spool and tending to press the other part ot said mechn anism against the. ratchet let-oli", substantially as described.

Q. In a mechanism oi' the kind deseribml. the combination with a base,` ol' spool meehanism includingl a ratchet let/oil` means Ior guiding cord from the spool. two presser members, the first located to bear against the mass ot cord on the spool and the seeond located to bear against the resistance disc, and elastic means intervening said presser members and tending to press the irst of said members against the cord mass on the spool and tending to press the second of said members against said ratchet let-oil, substantially as described.

3. In a mechanism of the kind described, the combination with a base, of spool meehanism including a ratchet let-oil"`r means for guiding cord passing from the spool` two hinged presser structures each turnable independently of the other and the .first being adapted to bear aga-inst the cord mass on the spool and the second being adapted to It is also to be noted that such Hence the fifi lOS

bear upon the ratchet let-oil, and elastic means intervening the two presser structures and tending to press the first ot' said structures against the cord mass on the spool and tending to press the second presser structure against the ratchet let-ofi' substantially as described.

4. In a mechanism ot the kind described, the combination with a base, of spool mechanism comprising a ratchet let-off, means ior guiding cord passing from the spool, two hinged presser structures each turnable independently of the other and the first being adapted to bear against the cord mass on the spool at one side of an upright plane cutting the spool axis and thc second being adapted to bear upon the ratchet let-ofi'i at the other side of said plane, and elastic means intervening thev two presser structures and tending to press the first of said structures against the cord mass on the spool and tending to press the second presser structure against the ratchet let-ofi", substantially as described.

5. In a mechanism of the kind described, the combination with a base, of spool mechanism including a ratchet let-o, means for guiding cord passing from the spool, two presser structures hinged on a common axial line and turnable independently of each other and the first being adapted to bear against the cord mass on the spool and the second being adapted to bear upon the ratchet let-oit, and elastic means intervening the two presser structures and tending to press the iirst of said structures against the cord mass on the spool and tending to press the second presser structure against the ratchet let-oii, substantially as described.

6. In a mechanism of the kind described, the combination with a base, of spool mechanism including a ratchet let-ofi', means for guiding cord passing from the spool, two presser structures hinged on a common upright axial line and turnable independently olf each other and the lirst being adapted to bear against the cord mass on the spool and the second being adapted to bear upon the ratchet let-oil?, and elastic means intervening the two presser structures and tending to press the iirst of said structures against the cord mass on the spool and tending to press the second presser structure against the ratchet let-ott, substantially as described.

7. In a mechanism of the kind described, the combination with a base, of spool. mechanism including a ratchet let-oli", means for guiding cord passing from the spool, a post, a sleeve rotatably surrounding the post, two presser members, one of which is turnable with and the other turnable on the sleeve, and one being adapted to bear against the cord mass on the spool and the other being adapted to bear against the ratchet let-off, and elastic means tending to press one of the presser structures against the cord mass on the spool and the other tending to press the other presser strucn ture against the ratchet let-ofi?, substantially as described.

8. In a mechanism of the kind described, the combination with a base, of spool mechanism including a ratchet let-off, means Ytor guiding cord passing from the spool, a post, a sleeve rotatably surrounding the post, two presser members, one of which is turnable with and the other turnable on the sleeve, and one being adapted to bear against the cord mass on the spool and the other being adapted to bear against the ratchet let-oit, and a spring supported by the sleeve and tending to press one ot the presser structures against the cord mass on the spool and the other tending to press the other presser structure against the ratchet let-on, substantially as described.

9. In a mechanism of the kind described,

the combination with a base, of spool mechanism including a ratchet let-orf, means for guiding cord passing from the spool, a post, a sleeve rotatably surrounding the post, two presser members, one of which is turnable with and the other turnable on the sleeve, and one being adapted to bear against the cord mass on the spool and the other being adapted to bear against the ratchet let-oil, and a spring coiled around the sleeve and tending to press one ot the presser structures against the cord mass on the spool and the other tending to press the other presser structure against the ratchet let-ott, substantially as described.

In testimony whereof I have signed my naine this 28th day of July, in the year one thousand nine hundred and twenty-two.

ERNEST KOELLA.

lili 

